Electrical signaling device for railroad-crossings.



No. 767,190. PATEN'TED AUG. 9, 1904. J. F. WEINSOHENK & C. H. BLODGETT.ELECTRICAL SIGNALING DEVICE FOR RAILROAD OROSSINGS.

APPLICATION FILED JAN.14, 1904.

NOMIODEL.

waiv M flTZ'ORA/QQS I NiTnn STATES Patented August 9, I904.

PATENT OFFICE.

JOSEPH F. XVEINSOHENK AND CLIFFORD H. BLODGETT, OF DURAND,

MICHIGAN.

ELECTRICAL SIGNALING DEVICE FOR RAILROAD-CROSSINGS.

SPECIFICATION forming part of Letters Patent No. 767,190, dated August9, 1904.

Application filed January 14., 1904. Serial No. 188,941. (No model.)

T0 or whom it may concern.-

Be it known that we, J OSEPI-I F. WVEIN- SCHENK and CLIFFORD H.BLODGETT, citizens of the United States, residing at Durand, county ofShiawassee, State of Michigan, have invented a certain new and usefulImprovement in Electrical Signaling Devices for Railroad-Crossings; andwe declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itpertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

Our invention relates to an improvement in electric signaling devicesfor railroad-crossings shown in the accompanying drawings, and moreparticularly set forth in the following specification and claims, inwhich Figure 1 is a perspective view of the relays. Fig. 2 is adiagrammatic view showing the condition of the electrical circuitsbefore the train has passed the crossing. diagrammatic view showing thecondition of the electrical circuits when the train is moving in theopposite direction.

The object of our invention is to provide an appliance which will signalthe approach of a train in which the electrical circuits connecting therelays with the tracks and those controlling the signal-bell are opencircuits until closed between track and relay by the wheels and axles ofthe approaching train, the closing of which energizes one pair of theelectromagnets of the relay, thereby closing the circuit through thesignal-bell and sounding the alarm. hen the train passes the crossingand bonded track leading to it, the apparatus will again resume itsnormal condition.

Referring to the letters of reference shown on the drawings, A is asuitable base on which are mounted the relays, B B being one pair ofelectromagnets and O C an oppositely-disposed pair of electromagnets.

D D are swinging arms secured to the armatures of the electromagnets andpivoted at (Z (Z.

E E are projecting arms hinged to the arms Fig. 3 is a of theelectromagnets and provided at their opposite ends with cords secured totheir respective capstans, the object being that by giving the cord twoor three Winds on the capstan the tension may be increased,or viceversa.

Referring to Fig. 2 of the drawings, it will be seen that the railscomposing the track on each side of the crossing are bonded together,

as indicated at M, being insulated from the track lying beyond thecrossing, which is connected with the oppositely-disposed relay, theelectromagnets of one relay being connected with each of the rails ofthe track on one side of the crossing, While the electromagnets of theother connect each of the rails of the track beyond the crossing. I is asignal-bell, included in the circuit of which is a battery J. Aconnection being established with the arms E or E, hinged to theswinging arms D and D, secured to the armatures of the electromagnetsand with the projecting arm F supported in the standard F through thebell and battery, it will be seen that as the train L, traveling in thedirection indicated by the arrow in Fig. 2, enters on the bonded sectionit will close the circuit through the battery K and the relay,energizing the electromagnets O and attracting the armature, to which isengaged the swinging arm D. This closes the circuit through the bell bymeans of the contact-points e and f, thereby sounding the alarm. Whenthe train passes over the crossing, the circuit having been brokenbetween the relay and the track, the spring H draws the armature awayfrom the electromagnets cured to the swinging arm 1), and with it meoverlapping contact-p0int secured to the arm E, thereby breaking theconnection through the arm F to the bell.

It will be noted that the operation of the oppositely-disposed relaycontrolling the same signal-bell will be identical with that justdescribed when the train is moving in the opposite direction.

Having thus described our invention, what we claim is 1. In an electricsignaling device for railroad-crossings, a signal-bell, eleetromagnetsplaced in circuit with the rails on each side of the crossing, aswinging arm secured to each armature of the electromagnets, an armhinged to each of the swinging arms provided with a contact-point tooverlap the contact-point of the arm first operated, an arm providedwith a suitable contact-point to close the circuit to the signal-bellthrough the contact-point of the hinged arm, and springs engaging theswinging arms to break the circuit through the eontact points of saidhinged arms when the train passing the crossing breaks the circuitthrough the electromagnets, substantially-as described.

2. In an electric signaling device for railroad-crossings, asignal-bell, electromagnets placed in circuit with the rails on eachside of the crossing, a swinging arm secured to each armature of theeleetromagnets, an arm hinged to each of the swinging arms havingcontactpoints overlapping each other, an adjustable cross-arm having acontact-point to close the circuit to the signal-bell through thecontactpoints of the hinged arms, and springs engaging the swinging armsto break the circuit through the signal-bell when the train, passing thecrossing breaks the circuit through the electromagnets, substantially asdescribed.

road-crossings, a signal-0e11, eiectromagnets placed in circuit with therails on each side of the crossing, a swinging arm secured to eacharmature of the electromagnets, an arm hinged to each swinging armhaving contact-points overlapping each other, an adjustable crossarmhaving a contact-point to close the circuit to the signal-bell throughthe contact-points of the hinged arms, springs engaging the swingingarms to break the circuit through the signal-bell after the train haspassed the crossing, and means for adjusting the tension of saidsprings, substantially as described.

L. In an electric signaling device for railroad-crossings,electromagnets to be placed in circuit with the rails on each side ofthe cross ing, a swinging arm secured to each armature of theelectromagnets, an arm provided with suitable contacting points hingedto each of the swinging arms, an adjustable cross-arm to close thecircuit to a signal-bell through the eontact-points on the swinging arm,when actuated by energizing the electromag'nets, substantially asdescribed.

5. In an electric signaling device for railroad-crossings, theelectromagnets B C, swinging arms D D secured to the armatures of theelectromagnets,arms E Ehinged to the swinging arms D D an adjustablecross-arm F, means for supporting and adjusting same, the constitutionbeing such that by energizing the eleetromagnets the arms E E will closea circuit leading to a signal-bell through the crossarm F, substantiallyas described.

In testimony whereof we sign this specification in the presence of twowitnesses.

JOSEPH F. VVEINSCHENK. CLIFFORD H. BLODGETT. Witnesses:

S. E. THOMAS, HENRY E. VILLEROT.

